量子纠缠

一个叫做”量子纠缠“（quantumentanglement）的过程使得其中一个光子的状态和另一个的密不可分地紧密相联。

The state of one of these photons was inextricably linked with that of the other through a process known as quantum entanglement .

Martinez约束形式与EPR粒子对的量子纠缠

Martinez constraint formalism and quantum entanglement of EPR pair

三个二能级粒子GHZ态与一个W型态的量子纠缠态交换控制方案；

The second is controlled exchange of quantum entangled state of three two-level particles GHZ state and a W state .

明亮EPR光束的量子纠缠交换

Entanglement Swapping of Bright EPR Optical Beams

在横场中（1/2,1）混合自旋各向异性XY模型的量子纠缠

Entanglement of ( 1 / 2,1 ) Mixed-Spin Anisotropic XY Model in a Transverse Field

Bell悖论和其他形式的量子纠缠理论，在信息无法超光速传播的前提下确实创造了一些有趣的安全通信机制。

The Bell Paradox and other forms of quantum entanglements , while not capable of faster-than-light communications , do create interesting mechanisms for secure communications .

到目前为止，光子的角动量已在许多应用方面取得到了重要进展，包括冷原子操控，光学扳手，量子纠缠及量子信息处理，旋转Doppler效应等。

Until now , photon angular momentum has many applications , ranging from manipulation of cooled atoms , optical spanner , rotational quantum communication and Doppler shift to quantum entanglement .

提出了一种外场驱动下在腔QED中实现量子纠缠交换的方案。

We propose a scheme for quantum entanglement swapping in driven cavity QED .

J-C模型中原子的自发辐射与量子纠缠态

Spontaneous emission of atom and quantum entangled state in J-C model

对这个方案进行的计算机模拟结果表明，这种模式纠缠态可以产生和量子纠缠态完全类似的相关函数，同样能够对Bell不等式产生破坏。

The numerical simulation results show that the correlation function of mode entangled states is quite similar to quantum entangled states , which can violate the Bell inequality .

第三章我们研究了Yang-Baxter系统的量子纠缠和几何相。

In Chapter 3 , we investigated the quantum entanglement and the geometry in the Yang-Baxter system .

由GHZ定理可知，三粒子的完全关联可以给出量子纠缠存在的非统计判据，这种判据比基于统计性质的Bell不等式更为可靠。

According to GHZ theorem , the full correlation of three particles can give the nonstatistical criterion of quantum entanglement , which is more reliable than Bell inequality , which is based on statistical property .

研究了两个全同二能级原子与单模场相互作用的Tavis-Cummings模型中的量子纠缠。

The quantum entanglement of the Tavis-Cummings model for two identical two-level atoms interacting with a single-mode field is considered .

全文共分六章：第一章简要回顾了量子纠缠的概念并使用有序算符内的积分技术证明了连续EPR态可以形成量子力学表象。

In chapter one , we briefly review the related concepts of quantum entanglement and use the technique of the integration within an ordered product to prove that the EPR state of continuum variables is a quan-tum representation .

通过引入negativity的概念，研究了（1/2,1）混合自旋各向异性XY模型的量子纠缠，得到了两个自旋在外场中的有限温度时的量子纠缠的数值结果。

By using the concept of negativity , we investigate entanglement of ( 1 / 2,1 ) mixed-spin anisotropic XY model and obtain the numerical results of entanglement of two spins in a transverse field at finite temperature .

Jaynes-Cummings模型是产生量子纠缠态的重要体系，研究发现，原子与场纠缠态的信息熵和纠缠度随时间摘要做周期性的振荡，量子态在非纠缠态与纠缠态之间变化。

Jaynes-Cummings Model is an important system to produce quantum-entangled state . We find that information entropy and the amount of entanglement oscillate with time-evolution periodically . The quantum state changes between disentangled state and entangled state .

本文以Dicke模型描述的单模光场与N个原子相互作用的系统为例，详细考察了系统的量子纠缠和保真度的动力学性质。该系统非旋波近似条件下发现为混沌。

Based on the description of single-mode optical Dicke model field and N atoms interaction system as an example , a detailed examination of the system of quantum entanglement and fidelity of the dynamics properties in the energy approximate conditions , finding chaos in this system .

本论文利用有序算符内的积分方法（IWOP）和量子纠缠态表象发展量子力学相空间理论。

Based on the technique of integration within an ordered product ( IWOP ) of operators and the quantum entangled state representation we develop the quantum phase space theory .

量子纠缠态及可分离态判据

Entanglement of Quantum Pure States and the Criterion of Disentangled State

原子与光场之间的量子纠缠态交换控制方案。

The third is controlled exchange atoms and the light field .

方势垒隧穿中的电子-空穴量子纠缠及其特性研究

Electron-Hole Entanglement Properties of Electron Tunneling through a Single Square Barrier

量子纠缠态是量子信息学中最重要的研究对象。

Entangled state is a foremost research object in quantum information .

量子纠缠最著名的应用之一就是量子隐形传态。

One of the best-known applications of entanglement is teleportation .

量子纠缠研究的关键问题之一是纠缠态的制备。

Generating entangled state is a key part of the quantum entanglement .

量子纠缠纯态的特性、制备和应用

Properties , Preparation and Application of Quantum Entanglement Pure States

量子纠缠是量子力学中的一种非经典现象。

The quantum entanglement is one of non-classical phenomena of quantum mechanics .

其中，量子纠缠是实现量子信息过程至关重要的资源。

Quantum entanglement is the crucial resources in the quantum information process .

对于多体量子纠缠，人们从各种不同的角度提出了具有不同物理意义的局域不变量。

People have proposed various kinds of local invariants for multipartite entanglement .

基于量子纠缠的空间信息传输系统研究

Study on System of Space Information Based on Quantum Entanglement

其中的量子纠缠是一个很受欢迎的研究领域。

Quantum entanglement has been a popular area of research .